The Schneider Electric VW3A68E402 is an RFI filter rated for 400V, designed to suppress electromagnetic interference on the input side of Altivar variable-speed drives. It bolts between the line supply and the drive, attenuating conducted emissions so the drive installation meets EMC directive limits without additional external filtering.
What it connects to — drive-side integration
This filter mounts between the line supply and the drive input, not the motor output. The 400V rating matches standard three-phase mains.